(very late reply...)

True, but then this would be a different extension. I created this to get at the comments left in by the developers that were otherwise inaccessible not to enumerate every one. For the rest, use:http://kb.mozillazine.org/About:config_entries

If I ever get around to tinkering with this again I'll probably add a context menu option to link to online documentation where available.

Mozilla developers wrote the source comments this extension shows, but not the online reference. MozillaZine is an community supported site, not the official Mozilla support site. Though not Mozilla run, it is often recommended and is currently the best source of information on things of a technical level between what's on Mozilla Support (SUMO) and the Mozilla Developer Network (MDN).

Rated 4 out of 5 stars

Good addon but description field is too long.It will be good to have a separate base of about:config settingsclients can update the local copy from serverfor example it can be stored as json (on user's machine){"pref.name":{short:'short description','detailed':"blah blah blah",values:[{val:0,descr:'disables superfeature'},{val:1,descr:'enables superfeature'},{val:2,descr:'enables superfeature but some subfeature is disabled'},]},....}if the pref supports only several correct values show a drop-down menu with them on editing (though there must be a way to set the pref directly).

Also the base should contain info not only about firefox prefs but also about addons ' prefs

not what this extension is for

The whole point of this extension is to simply and quickly access the information about the preferences that is already shipped with the Firefox releases. It is way outside the scope of this project to rewrite it to load up a massive, meticulously maintained, remotely updated, fully translated, database of every single preference for your browser and all extensions. This extension is not a complete substitute for looking up things online yourself. http://kb.mozillazine.org/About:config_entries